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Plenum Gasket

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  #11  
Old 05-19-2009, 01:17 PM
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I had a friend do my plenum gasket using new fel-pro gaskets and ultra cooper silicone and have not had any issues, thats how he has always done them on these dodges. Just my opinion.
 
  #12  
Old 05-19-2009, 02:29 PM
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Anyone got a link to the mopar intake?
 
  #13  
Old 05-19-2009, 03:44 PM
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Originally Posted by Steel Horse
what do you mean by this? If i were to get the air gap or M1 manifold then i dont have to buy the plenum gasket?
Yeah but, the Hughes Engines FI Airgap Intake is $600 and the Mopar M1 is $450. A modded kegger (nickname for the fac. intake because it looks like a keg cut in half) and the aluminum plenum pan will do just fine in a near stock truck in the future.
$160<$600 IMO
 
  #14  
Old 05-19-2009, 04:26 PM
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Originally Posted by revvinram
I had a friend do my plenum gasket using new fel-pro gaskets and ultra cooper silicone and have not had any issues, thats how he has always done them on these dodges. Just my opinion.

You might eventually, most of the time the stock bolts are too long. And the problem won't go away because of that one reason.
 
  #15  
Old 05-20-2009, 06:48 PM
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My plenum went at 150,000 that was in september, I have 167,000 on it now and all is well so far....
 
  #16  
Old 05-20-2009, 07:09 PM
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Its a matter of time, it will go again (hate to say it, sorry revvinram).

The reason is you took care of the symptom of the problem, not the problem itself. A steel plate bolted to aluminum will always cause the gasket between the two to fail when placed in an environment that has rapid heat/cold changes, its just a matter of time.
 
  #17  
Old 05-20-2009, 07:31 PM
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Well Jason if it does then I know what I have to do. But If the first one lasted me that long Im hoping this one does also. I know that his own ram had 225,000 on it when he sold it and he did his at 75 or 80,000 he has done quite a few of these rams and hasn't had any issues. Time will tell!!
I should have about or close to 200,000 on it by end of the year..
 
  #18  
Old 05-20-2009, 07:40 PM
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Playing devil's advocate, you usually won't notice a leaking plenum gasket until it gets extremely, extremely bad, due to the "death flash". It retarded the timing to hide the symptoms of the leaking gasket. I had it, only way I could tell was after I programmed my PCM with the Superchips Flashpaq. It pinged like nuts at WOT.

It looked like I had a very small leak if any at all from the top, looking down past my butterflies. But after my intake was off, wow, did I have a leak. Like I've stated before in other threads, I had to have about a quarter to half quart of oil in the manifold.

I hope yours lasts forever and never leaks, don't get me wrong, but with the plenum gasket, I've learned that the worst case is usually true, even when tests tell you otherwise.
 
  #19  
Old 05-20-2009, 08:06 PM
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i also didn't know mine was leaking until i added a hypertech. then it pinged like a mother. replaced plenum and it stopped. only then did i realize how much better it ran. the lean mix just saps it of any power.
 
  #20  
Old 05-21-2009, 10:57 AM
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Isnt there a lower and upper gasssket for the intake manifold?
 


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